Ref: ASTROimport-815

Achernar can be a differential rotator

Zorec, J. ; Domiciano de Souza, A. ; Frémat, Y. ; Vakili, F.

published in SF2A-2005: Semaine de l'Astrophysique Francaise, pp. 363 (2005)

Abstract: We take advantage of interferometric measurements of Achernar to inquire on its internal rotational law. The reinterpretation of interferometric data and the use of fundamental parameters corrected for gravitational darkening effects and 2D-models of internal stellar structures, lead us to the conclusion that the star could not be a rigid, near critical, rotator but a differential rotator with the core rotating ˜3 times faster than the surface.

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Royal Observatory of Belgium > Astronomy & Astrophysics
Science Articles > Non-refereed Articles

 Record created 2016-07-01, last modified 2016-07-01